(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.

Webcode Seach | Series
#CODE
Keyword suggestions
Part number suggestions
Discontinued Products

Loading

  • Our website upgrade are completed! Latest improvements are now LIVE to enhance your ordering experience. You may be logged out due to the update. Please take note to login again or reset credentials if needed. More details here.　

  • How can we improve?

    How can we improve?

    Comments
    Name (Optional)
    E-mail Address (Optional)
    Tel (Optional)

    While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
    Customer Privacy Policy

    Thank you for your cooperation.

    While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
    Please use the inquiry form.

    Customer Privacy Policy

Hex socket head cap screw CSHHNB【1-500 Pieces Per Package】 (CSHHNB-ST-M5-20)

Hex socket head cap screw CSHHNB CSHHNB-ST-M5-20

Click this image to zoom it.

Move the mouse over the image to zoom

  • Volume Discount

NIHON_BYORA

NIHON_BYORA

[Material]Steel, stainless steel
[Surface Treatment]None, Black oxide coating, Electroless nickel plating, Trivalent black, Trivalent white, Bright chromate plating, Chromate plating, Chrome plating, Geomet treatment, Tin cobalt, Dacrotized, dark bronze color plating, anti-seize coating, Black nickel plating, Black chromate

(i)Caution

  • The product images are representative only. Specifications may vary by part number, including shape and color.

Part Number

Configured Part Number is shown.

CSHHNB-ST-M5-20

Drawing

Hex socket head cap screw CSHHNB external shape drawing

Specifications Table

Nominal thread size (d)Thread Pitch (p)bdkdadskrStv
ReferenceMaximumMinimumMaximumMaximumMinimumMaximumMinimumMinimumNominal dimensionsMax. (12.9)Max. (10.9)MinimumMinimumMaximum
M30.5185.685.323.603.002.863.002.860.12.52.582.582.521.30.3
M40.7207.226.784.704.003.824.003.820.23.03.083.083.0220.4
M50.8228.728.285.705.004.825.004.820.24.04.0954.0954.022.50.5
M61.02410.229.786.806.005.826.005.700.255.05.145.145.0230.6
M81.252813.2712.739.208.007.788.007.640.46.06.146.146.0240.8
M101.53216.2715.7311.210.009.7810.009.640.48.08.1758.1758.02551.0
M121.753618.2717.7313.712.0011.7312.0011.570.610.010.17510.17510.02561.2
M142.04021.3320.6715.714.0013.7314.0013.570.612.012.212-12.03271.4
M162.04424.3323.6717.716.0015.7316.0015.570.614.014.21214.21214.03281.6
M202.55230.3329.6722.420.0019.6720.0019.480.817.017.2317.2317.05102.0
M222.55633.3932.6124.422.0021.6722.0021.480.817.0-17.2317.05112.2
M243.06036.3935.6126.424.0023.6724.0023.480.819.0-19.27519.065122.4
M303.57245.3944.6133.430.0029.6730.0029.481.022.0-22.27522.06515.53.0
*b (for reference) indicates the length of the effective thread section of the partially threaded bolt.

Product Feature Details

Because tightening of screws can be performed with simple tools, it is often handled carelessly, but tightening is important for the reliability of the secured assembly. For this reason, it is necessary to select bolts and tightening methods that can provide the appropriate tightening force during the design stage, and to faithfully follow the tightening method during the tightening stage to ensure the target tightening force (initial tightening force).

1. Relationship Between Bolt Elongation and Tightening Axial Force

In general, when a bolt is tightened, it yields at a lower value than the normal tensile force b, as shown in figure a on the right, resulting in a relative decrease in axial force. This rate of decrease becomes greater as the coefficient of friction on the thread surface increases, and the coefficient of friction varies depending on the material of the tightened object and the female thread, as well as the lubrication condition. Generally, the appropriate tightening axial force when using the torque method is determined within the elastic range, with a maximum of 70% of the standard proof strength.
Hex socket head cap screw CSHHNB bolt elongation and axial force related image

Bolt elongation and axial force

2. Representative tightening management methods

Tightening management methodsIndicatorsTightening range
Torque methodTightening torqueElasticity region
Rotation angle methodTightening rotation angleElasticity region
Plastic region
Torque gradient methodWith respect to tightening rotating angleElastic limit
Gradient of tightening torque
Each tightening method has a tightening region corresponding to the deformation region of the bolt, and the range of tightening axial force differs. The figure below schematically illustrates the relationship between bolt elongation and tightening axial force. From the figure, it can be seen that the magnitude of the tightening axial force has the relationship: elastic region < elastic limit < plastic region.
Hex socket head cap screw CSHHNB bolt elongation and tightening axial force relationship diagram

Relationship between bolt elongation and axial tightening force

3. Tightening by torque method

An explanation of the general torque method is provided. The relationship between torque (Tf) and axial force is shown by Formula (1).
Tf = k · d · Ff · ····· (1)
As shown in the figure on the right, due to variations in K, allowable setting values of Tf, etc., Formula (1) is replaced by Formula (2).
T fA = 0.35k (1 + 1/Q) σy x As x d:: (2)
The tightening torque is determined by equation (2). K is determined by the friction coefficient of the thread surface and the friction coefficient of the seat surface, and the experimentally obtained torque coefficient considering these factors is shown in the figure on the right.
Q is called the tightening coefficient and can be expressed as Q = Ffmax./Ff min.; the standard values are shown in the table below.
Hex socket head cap screw CSHHNB Relationship Diagram of Bolt Elongation and Tightening Axial Force (Torque Method Tightening)

Relationship between bolt elongation and tightening axial force (torque method tightening)

Bolt
Surface treatment
Lubrication		Torque coefficient
k		Combination
Tightened part material - Female screw material
(i) (ii)
Steel bolt
Black oxide coating　
(Temper color? Black oxide, etc.)
Oil		0.145SCM-FC  FC-FC  SUS-FC
0.155S10C-FC  SCM-S10C  FC-S10C  SCM-SCM  FC-SCM
0.165SCM-SUS  FC-SUS  AI-FC  SUS-S10C  SUS-SCM  SUS-SUS
0.175S10C-S10C S10C-SCM S10C-SUS A1-S10C A1-SCM
0.185SCM-A1 FC-A1 A1-SUS
0.195S10C-A1 SUS-A1
0.205-
0.215A1-A1
Steel bolt
black oxide coating
Not lubricated		0.250SI0C-FC SCM-FC FC-FC
0.350S10C-SCM SCM-SCM FC-S100 FC-SCM Al-FC
0.450S10C-S10C SCM-S10C Al-SCM A1-S10C
0.550SCM-A1 FC-A1 A1-A1
Steel bolt
Electrogalvanized
None		0.250S10C-SCM S10C-FC FC-SCM FC-FC
0.350S10C-S10C SCM-S10C SCM-SCM SCM-FC FC-S10C
A1-S10C A1-SCM A1-FC
0.450S10C-A1 SCM-A1 FC-A1 A1-A1
Stainless steel bolt
Gloss barrel
None		0.250FC-FC SUS-FC
0.350A1-FC
0.450FC-A1  FC-SUS  SUS-SUS
0.550A1-A1  A1-SUS  SUS-A1

Torque coefficient K by combining the surface treatment of the bolt, the surface to be clamped, and the female thread material

Tightening coefficient
Q		Mounting MethodSurface ConditionLubrication State
BoltNut
1.15Torque gradient methodAll casesAll casesAll cases
Rotating Angle Method (Elastic Region)
1.25Torque WrenchManganese phosphatenot treated or phosphateoil lubrication or MoS2
1.4Torque Wrench,not treated or phosphatePaste
Wrench with torque limiter-
1.6Impact wrench-
Bolt elongation measurementAll casesAll casesAll cases
1.8Torque Wrenchnot treated or phosphatenot treatedwithout lubrication
Wrench with torque limiter
2Impact screwdriverZinc or cadmium platingnot treated
Powered screwdriverGalvanizedGalvanizedOil lubrication or no lubrication
-Cadmium platingCadmium plating
Nut rotating angle method (elastic range)All casesAll casesAll cases
3Manual tightening with a long-handled wrenchAll casesAll casesAll cases

The standard values of tightening coefficient Q

4. Calculation example of tightening torque for hex socket head bolts

Allowable maximum axial force (F) = 0.7 × yield load
Tightening torque (TfA) = 0.35k (1 + 1/Q) σy·As·d
Maximum tightening torque (Tf) = k × F × d
k: torque coefficient
Q: tightening coefficient
σy: yield point or proof strength
As: effective cross-sectional area
d: nominal thread size
Steel (10.9, 12.9) Minimum proof strength: 10.9 = 940 N/mm2 (95.9 kgf/mm2), 12.9 = 1100 N/mm2 (112 kgf/mm2), stainless steel (A2-70) Minimum proof strength: 450 N/mm2 (45.9 kgf/mm<sup id="9">2</sup>)
30
45
60
  1. 1
Part Number
CSHHNB-ST-M5-20
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSNominal of Thread (M) Length L (mm) Material SurfaceTreatment Pitch
(mm) 		Screw Type Strength Class (Steel) Sales Unit Strength Class (Stainless Steel) Application

MYR 0.90

1 Piece(s) 5 Day(s) or more 10520[Steel] SteelBlack Oxide Coating0.8Complete thread-Low Quantity (can be purchased from one)-Standard

Loading...

  1. 1

Basic Information

Basic Shape Standard (Round) Mounting Hole Shape Hex Socket Additional Shape Standard
Thread Type Metric coarse

Please check the type/dimensions/specifications of the part CSHHNB-ST-M5-20 in the Hex socket head cap screw CSHHNB series.

Configure

Clear All

1 Part Numbers

View Part Numbers

Configure Remaining Specifications
Completed
loading

Specification/Dimensions

  • Strength Class (Steel)

    • 10.9
    • 12.9

    Clear

  • Strength Class (Stainless Steel)

    • A2-70

    Clear

  • type

    • CSHHNB-ST-M
    • CSHHNB-ST3B-M
    • CSHHNB-ST3W-M
    • CSHHNB-STC-M
    • CSHHNB-STGSC-M
    • CSHHNB-STH-M
    • CSHHNB-STLN-M
    • CSHHNB-STTGEO-M
    • CSHHNB-STU-M
    • CSHHNB-ST□-M
    • CSHHNB-ST□□-M
    • CSHHNB-SUS-M
    • CSHHNB-SUSD-M
    • CSHHNB-SUSTGEO-M
    • CSHHNB-SUS□□□-M

    Clear

  • Nominal of Thread (M)

    • 3
    • 4
    • 5
    • 6
    • 8
    • 10
    • 12
    • 14
    • 16
    • 20
    • 22
    • 24
    • 30

    Clear

  • Length L (mm)

    • 5
    • 6
    • 8
    • 10
    • 12
    • 14
    • 15
    • 16
    • 18
    • 20
    • 22
    • 25
    • 30
    • 35
    • 40
    • 45
    • 50
    • 55
    • 60
    • 65
    • 70
    • 75
    • 80
    • 85
    • 90
    • 95
    • 100
    • 105
    • 110
    • 115
    • 120
    • 125
    • 130
    • 135
    • 140
    • 145
    • 150
    • 155
    • 160
    • 165
    • 170
    • 175
    • 180
    • 185
    • 190
    • 195
    • 200
    • 210
    • 220
    • 230
    • 240
    • 250

    Clear

  • Material

    • Steel
      • Steel
    • Stainless Steel
      • Stainless Steel

    Clear

  • SurfaceTreatment

    • No
    • Black oxide coating
    • Black Oxide Coating
    • Electroless Nickel Plating
    • Trivalent Chromate
      • Trivalent Black
      • Trivalent White
    • Bright Chrome Plating
      • Bright Chromate Plating
    • Chromate Plating
      • Chromate Plating
    • Black nickel plating
    • Chrome Plating
      • Chrome Plating
    • Dacromet
    • Geomet Treated
    • Anti-Seizure Coat
    • Copper Plating
      • German Brown plating
    • Tin Plating
      • Tin cobalt

    Clear

  • Pitch(mm)

    • 0.5
    • 0.7
    • 0.8
    • 1
    • 1.25
    • 1.5
    • 1.75
    • 2
    • 2.5
    • 3
    • 3.5

    Clear

  • Screw Type

    • Complete thread
    • Half Thread

    Clear

  • Sales Unit

    • Low Quantity (can be purchased from one)
    • Box/package

    Clear

  • Application

    • Standard

    Clear

Days to Ship

    • All
    • 4 Day(s) or Less
    • 5 Day(s) or Less
    • 6 Day(s) or Less
    • 7 Day(s) or Less
    • 10 Day(s) or Less

    Clear

Specify Alterations

Products like this...

Part Number
CSHHNB-ST-M10-120
CSHHNB-ST-M10-130
CSHHNB-ST-M10-140
CSHHNB-ST-M5-30
CSHHNB-ST-M5-35
CSHHNB-ST-M5-40
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSNominal of Thread (M) Length L (mm) Material SurfaceTreatment Pitch
(mm) 		Screw Type Strength Class (Steel) Sales Unit Strength Class (Stainless Steel) Application

MYR 8.59

1 Piece(s) 4 Day(s) or more 1010120[Steel] SteelBlack Oxide Coating1.5Half Thread-Low Quantity (can be purchased from one)-Standard

MYR 9.88

1 Piece(s) 5 Day(s) or more 1010130[Steel] SteelBlack Oxide Coating1.5Half Thread-Low Quantity (can be purchased from one)-Standard

MYR 11.53

1 Piece(s) 5 Day(s) or more 1010140[Steel] SteelBlack Oxide Coating1.5Half Thread-Low Quantity (can be purchased from one)-Standard

MYR 1.07

1 Piece(s) 5 Day(s) or more 10530[Steel] SteelBlack Oxide Coating0.8Half Thread-Low Quantity (can be purchased from one)-Standard

MYR 1.14

1 Piece(s) 5 Day(s) or more 10535[Steel] SteelBlack Oxide Coating0.8Half Thread-Low Quantity (can be purchased from one)-Standard

MYR 1.25

1 Piece(s) 5 Day(s) or more 10540[Steel] SteelBlack Oxide Coating0.8Half Thread-Low Quantity (can be purchased from one)-Standard

Additional Products in this Category

Customers Who Viewed This Item Also Viewed

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations)
Tel：(60) 3 7890 6399
9:00am - 6:00pm (Monday - Friday)
9:00am - 1:00pm (Saturday)
Technical Inquiry

Payment Method

more
  • Credit Card
    • VISA
    • MasterCard
  • Bank Transfer
    • FPX
    • Interbank GIRO (IBG)

About MISUMI

About this Website

Useful Tools

Customer Service

Social Media

MISUMI Contact 9am – 6pm (Mon – Fri) * Order cut-off time is 5pm,    9am – 1pm(Sat) * Order cut-off time is 12pm

  • Tel: (60) 3 7890 6399
Inquiry
Mobile View

Copyright © MISUMI Corporation All Rights Reserved.